The coastal freatic aquifer of the Cervia city is polluted by salt water. Protection of fresh groundwater resources in this area is complicated by the presence of multiple stakeholders and by the fragmentation of the authorities responsible for land planning. Most of the topography is under sea level or in its close proximity. Consequently, most of the aquifer does not have a hydraulic head able to prevent the intrusion of the salt wedge at its base (Ghyben-Herzberg principle).Water table and salinity maps show an aquifer almost completely invaded by salt water with bubbles of surface fresh water almost completely confined to elevated areas located near the coast. The study identified as causes of salt water intrusion: direct contamination from canals open to sea, subsidence, drainage of farmland, groundwater extraction from wells along the shoreline (bathing establishments) and, last, groundwater winning from private wells inland. On the basis of these results some mitigation action can be proposed: the lining of the salt canals, a different management plan for the floodgates on the canals, to provide shoreline establishments with freshwater from other fresh water resources as a measure to stop direct tapping from the aquifer.
Keywords: Saltwater Intrusion, Unconfined Costal Aquifer
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bear, J., Cheng, A.H.-D., Sorek, S., Ouazar, D., and Herrera, I., 1999, Seawater intrusion in coastal acquifer - concepts, methods and practices, 1st ed., Springer, p. 640 .
Carter, R.W.G., 1988, An introduction to the Physical, Ecological and Cultural System of Coastlines, Coastal Environments. pp. 431-443.
Colantoni, P., Preti, M., and Villani, B., 1990, Sistema deposizionale e linea di riva olocenica sommersi in Adriatico al largo di Ravenna, Giornale di Geologia, sez.3°, 52/1: 1-18.
Fetter, C.W., 2001, Applied hydrogeology, fourth ed., Prentice Hall, pp. 697. Geaprogetti, 2001, Studio di una rete duale acquedottistica per usi plurimi nel comune di Cervia. Studio di fattibilità. Alpina acque S.r.l..
Konikow, L.F., Reilly, T.E., 1999, “Seawater intrusion in the United States”. In J. Bear et al. (eds), Seawater intrusion in coastal aquifer, 463-506.
Santini E. (1992), “Ricostruzione degli eventi deposizionali tardo-pleistocenici e olocenici nella piana costiera cervese”. Tesi di laurea, Università di Bologna.
Segol, G., and Pinder, G.F., 1976, Transient simulation of salt water intrusion in south eastern Florida, Water Resour. Res., 12: 65-70.
Souza, W.R., and Voss, C.I., 1987, Analysis of an anysotropic coastal aquifer system using variable-density flow and solute transport simulation, Journal of Hydrogeology, 92: 17-41.
Sonenshein, R.S., 1995, Delineation of Saltwater Intrusion in the Biscayne Aquifer, Eastern Dade County, Florida, 1995, Water-Resources investiogation Report 96-4285. U.S. Department of the interior - U.S. Geological Survey.
Unesco, 1983, Algorithms for computation of foundamental properties of seawater, Unesco Technical Papers in Marine Science. By N.P. Fofonoff and R.C. Millard jr.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2008 Springer
About this paper
Cite this paper
Ulazzi, E., Antonellini, M., Gabbianelli, G. (2008). Saltwater Intrusion in a Unconfined Coastal Aquifer: The Case Study of Cervia (North Adriatic Sea, Italy). In: Meire, P., Coenen, M., Lombardo, C., Robba, M., Sacile, R. (eds) Integrated Water Management. NATO Science Series, vol 80. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6552-1_22
Download citation
DOI: https://doi.org/10.1007/978-1-4020-6552-1_22
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-6550-7
Online ISBN: 978-1-4020-6552-1
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)